Question : varchar sort

orderid is a number
select * from trackingnumbers order by orderid desc
this command does not work
is this because orderid is a varchar



SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[trackingnumbers](
      [trackingnumberid] [int] IDENTITY(1,1) NOT NULL,
      [date] [datetime] NOT NULL CONSTRAINT [DF_trackingnumbers_date]  DEFAULT (getdate()),
      [orderid] [varchar](50) NOT NULL,
      [trackingnumber] [varchar](50) NULL,
      [shipper] [varchar](10) NULL,
      [cost] [decimal](10, 2) NULL,
      [void] [varchar](20) NULL,
      [name] [varchar](100) NULL,
      [address] [varchar](100) NULL,
 CONSTRAINT [PK__trackingnumbers__2B3F6F97] PRIMARY KEY CLUSTERED
(
      [trackingnumberid] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF

Answer : varchar sort

select * from trackingnumbers order by cast(orderid as bigint)  desc